Even more than creating preset fashion (although that would be a godsend, too), I'd like an option to simply copy an outfit from one section to another. Who doesn't know the problem, you're in the middle of creating a formal outfit, then realise it looks more like something your sim would wear at a party, and instead of simply copying it to the corresponding section, you have to start all over again, including hair, makeup, accessories and everything. With vampires, you can actually copy entire outfits from their normal form to the dark form anytime, so the groundwork for a function like that is definitely there.
I don't need to create my own worlds (I don't even build my own houses anymore because of the omnipresent major annoyance that is the roof), but it would be nice if we could at least change a few things about the existing ones, such as lot sizes, climate, or put a few interesting interactive objects here and there so sims have a reason to leave their home lots every now and then. So many beautiful worlds and nothing to do in them, it's just sad.
Not sure how I feel about the idea of vampires turning into wolves, that's a completely different species of supernatural we're talking here, but while we're on it, yes, more supernaturals please (*cough* witches *cough*). And more sports, too! I'd love to have football in my game, even if it's just sims taking shots at a goal like it was in TS2.
